CUED Publications database

The effects of moisture and stress on CFRP-concrete interactions in CFRP pre-stressed concrete

Sivanendran, S and Lees, JM (2016) The effects of moisture and stress on CFRP-concrete interactions in CFRP pre-stressed concrete. In: UNSPECIFIED pp. 535-542..

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Abstract

© 2016, A.A. Balkema Publishers. All rights reserved. The behaviour of carbon fibre reinforced polymer (CFRP) rods when exposed to moisture and a constant axial load as pre-stressed reinforcement in concrete is yet to be understood. This study seeks to determine whether a combination of moisture and stress could influence the bond between the CFRP and concrete. Experiments were undertaken through a series of pull-out tests conducted on medium strength concrete cubes with pre-stressed CFRP (non-sand coated, smooth) tendons centrally embedded. These cubes were exposed to moisture for 47, 97 and 125 days before being tested. The results of the experiments suggest that the sustained axial loading in the CFRP coupled with moisture exposure does cause changes in the bond behaviour between the CFRP and concrete. These results will be used to test and model the long term behaviour of CFRP pre-stressed concrete structures with respect to changes in transfer length, serviceability considerations and ultimate load capacities.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div D > Structures
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:00
Last Modified: 24 Aug 2017 01:29
DOI: